| BIGMAC | ⊕ 1981 | ||||
| CLG | ⊕ 1981 | ⊕ United States | Command Language Grammar | ||
| Consul | ⊕ 1981 | ⊕ United States | |||
| FLIP | ⊕ 1981 | ⊕ France | |||
| GML | ⊕ 1981 | ||||
| GPL | ⊕ 1981 | ⊕ United States | Graphical Data-driven Programming language | ||
| KRC | ⊕ 1981 | ⊕ United Kingdom | Kent Recursive Calculator | ||
| microTAL | ⊕ 1981 | ⊕ United States | |||
| NEPAL | ⊕ 1981 | ⊕ United Kingdom | |||
| RATMAC | ⊕ 1981 | ⊕ United States | |||
| Strand | ⊕ 1981 | ||||
| URL | ⊕ 1981 | ⊕ United States |